Impurity removal device for circulating flash evaporator

Abstract

The utility model relates to the technical field of flash evaporators, in particular to an impurity removal device for a circulating flash evaporator, which comprises a main body, an impurity removal gap is arranged in the main body, an upper pipe is arranged at the top end of the impurity removal gap, a lower pipe is arranged at the bottom end of the impurity removal gap, a filter frame is arranged in the impurity removal gap, and a plurality of annular holes are arranged on the filter frame. A plurality of springs are arranged on the filter frame, a fan-shaped filter screen is arranged at the top ends of the springs, a cam is arranged at the bottom end of the fan-shaped filter screen, the cam is connected with a rotating motor, a rotating rod is arranged at the bottom end of the filter frame, a driven gear is arranged at one end of the rotating rod, the driven gear is meshed with a driving gear, and the driving gear is connected with the motor; by means of the structure of the motor, the driving gear, the driven gear, the fixing rod, the mounting frame, the pulling plate and the limiting rod, the problems that a filter screen in the device is fixed for filtering, materials are prone to accumulation, small materials cannot be discharged, and meanwhile scrapers are prone to abrasion and inconvenient to replace after being used for a long time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flash evaporators, in particular to an impurity removal device for a circulating flash evaporator. Background Art

[0002] The working principle of the flash dryer is as follows: after the wet material enters the dryer, it is impacted by the high-temperature airflow rotating from the bottom, and at the same time is hit and cut by the high-speed rotating blades, crushing and drying at the same time, the surface area increases sharply, and the mass transfer and heat transfer process are completed in a very short time. The material with smaller particle size rises with the rotating airflow, and is automatically graded at the top of the dryer due to quality. The material with qualified particle size and qualified moisture is taken out of the dryer by the airflow. The material with large particle size and high moisture content is separated and continues to be dried in the dryer, so as to complete the uniform and high-speed drying of all materials and produce qualified products. The filter cake is the solid matter contained in the original liquid retained on the filter after the liquid passes through the filter. The filter cake is relatively loose and does not require too much crushing work, so the filter cake is a commonly used material. However, there are still relatively large impurities in the filter cake, and the circulating flash evaporator is usually a relatively closed system, so it is usually necessary to wait for the equipment to run for a period of time before cleaning the impurities. Because it is necessary to shut down and spend a lot of time to clean up the impurities, it causes the problem of equipment operation efficiency.

[0003] And in the application document with the publication number CN210474675U, it is mentioned that the impurity removal device for the circulating flash evaporator is used. Under the action of the rotating power device, the impurity removal filter screen rotates, and the fan-shaped filter screen is intermittently located in the gap. When the fan-shaped filter screen is not in the impurity removal gap, the material directly enters the lower tube through the annular hole from the upper tube. When the fan-shaped filter screen is located in the impurity removal gap, the material passes through the fan-shaped filter screen, and the larger impurities fall on the fan-shaped filter screen, and a small amount of large pieces of material also fall on the fan-shaped filter screen, and the small particles of material pass through the fan-shaped filter screen and enter the lower tube. As the fan-shaped filter screen rotates, impurities and a small amount of large pieces of material are moved out of the return pipe from the impurity removal opening along with the fan-shaped filter screen. When the fan-shaped filter screen contacts the scraper, the scraper scrapes the impurities and a small amount of large pieces of material from the fan-shaped filter screen, but there are still certain defects, which need to be optimized. The specific defects are as follows: the filter screen in the device is a fixed filter, and the material is easy to accumulate, resulting in the small material cannot be discharged, and the scraper is easy to wear for a long time and is not easy to replace.

[0004] Therefore, it is particularly important to design a de-impurity device for a circulating flash evaporator to change the above technical defects and improve the overall practicality. Utility Model Content

[0005] The utility model aims to provide a de-impurity device for a circulating flash evaporator to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A de-impurity device for a circulating flash evaporator, comprising a main body, a de-impurity gap is provided inside the main body, an upper tube is provided at the top of the de-impurity gap, a lower tube is provided at the bottom of the de-impurity gap, a filter frame is provided in the de-impurity gap, a plurality of annular holes are provided on the filter frame, a plurality of springs are provided on the filter frame, a fan-shaped filter screen is provided at the top of the spring, a cam is provided at the bottom end of the fan-shaped filter screen, the cam is connected to a rotating motor, a rotating rod is provided at the bottom end of the filter frame, a driven gear is provided at one end of the rotating rod, the driven gear meshes with a driving gear, the driving gear is connected to the motor, and a fixing rod is provided on the inner side wall of the main body;

[0008] The fixing rod is connected to the mounting frame, a pull plate is provided at the top of the mounting frame, the pull plate is connected to the limiting rod, a compression spring is provided on the outside of the limiting rod, and one end of the limiting rod is connected to the scraper.

[0009] As a preferred solution of the utility model, the fan-shaped filter screen is elastically connected to the filter frame, and a plurality of the annular holes are arranged at equal intervals.

[0010] As a preferred solution of the utility model, the rotating motor and the cam are fixedly connected, the motor and the driving gear are key-connected, and the rotating rod and the driven gear are fixedly connected.

[0011] As a preferred solution of the utility model, the mounting frame is U-shaped, and a clearance opening for avoiding the limit rod is symmetrically provided at the top of the mounting frame, and the transverse section area of ​​the pull plate is larger than the transverse section area of ​​the clearance opening.

[0012] As a preferred solution of the utility model, a fixing plate is provided on the outside of the limiting rod, the fixing plate is fixedly connected to one end of the compression spring, and a limiting hole for matching with the limiting rod is provided on the scraper.

[0013] As a preferred solution of the utility model, the inner side wall of the mounting frame is symmetrically provided with positioning protrusions, and both sides of the scraper are provided with positioning grooves for matching with the positioning protrusions, and the scraper is slidably connected to the mounting frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, a cleaning device for a circulating flash evaporator is provided, and a structure of a motor, a driving gear, a driven gear, a fixed rod, a mounting frame, a pull plate, and a limit rod is utilized. The filter frame is driven to rotate by the motor, and the fan-shaped filter screen is intermittently located in the cleaning gap. The fan-shaped filter screen is lifted up by a cam, and at this time, a spring stretches and resets as the cam rotates. At this time, due to the action of the spring, the fan-shaped filter screen bounces up and down repeatedly to accelerate the filtering effect. When the scraper blade is worn out after being used too many times, the pull plate can be pulled up to disengage the limit rod from the inside of the limit hole, and then the scraper blade can be disengaged from the inside of the mounting frame, and then it can be replaced. This solves the problem that the filter screen in the device is fixed for filtration, materials are easily accumulated, resulting in small materials being unable to be discharged, and the scraper blade is easily worn out for a long time and is not convenient to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a planar structural diagram of the utility model as a whole;

[0017] Figure 2 It is a plan view of the scraper assembly and a structural view of the mounting frame assembly of the utility model;

[0018] Figure 3 It is a plan view of the filter frame of the utility model and a structural view of the fan-shaped filter screen assembly.

[0019] In the figure: 1. main body; 101. debris removal gap; 102. upper tube; 103. lower tube; 104. rotating rod; 105. driven gear; 106. driving gear; 107. motor; 2. filter frame; 201. annular hole; 202. spring; 203. fan-shaped filter screen; 204. cam; 205. rotating motor; 3. fixing rod; 301. mounting bracket; 302. pull plate; 303. limit rod; 304. compression spring; 305. scraper. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively with reference to the relevant drawings below. Several embodiments of the utility model are given. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0025] A cleaning device for a circulating flash evaporator comprises a main body 1, a cleaning gap 101 is arranged inside the main body 1, an upper tube 102 is arranged at the top of the cleaning gap 101, a lower tube 103 is arranged at the bottom of the cleaning gap 101, a filter frame 2 is arranged in the cleaning gap 101, a plurality of annular holes 201 are arranged on the filter frame 2, a plurality of springs 202 are arranged on the filter frame 2, a fan-shaped filter screen 203 is arranged at the top of the spring 202, and a cam is arranged at the bottom of the fan-shaped filter screen 203. 204, the cam 204 is connected to the rotating motor 205, the bottom end of the filter frame 2 is provided with a rotating rod 104, one end of the rotating rod 104 is provided with a driven gear 105, the driven gear 105 is meshed with a driving gear 106, the driving gear 106 is connected to the motor 107, the inner side wall of the main body 1 is provided with a fixing rod 3, the fixing rod 3 is connected to the mounting frame 301, the top of the mounting frame 301 is provided with a pull plate 302, the pull plate 302 is connected to the limit rod 303, the outer side of the limit rod 303 is provided with a There is a compression spring 304, one end of the limit rod 303 is connected to the scraper 305, and the driving gear 106 is driven to rotate by the motor 107, and the driving gear 106 drives the driven gear 105 to rotate. At this time, the filter frame 2 above rotates, and the fan-shaped filter screen 203 is intermittently located in the impurity removal gap 101, wherein the rotating motor 205 drives the cam 204 to lift the fan-shaped filter screen 203, and at this time, the spring 202 stretches. With the rotation of the cam 204, the fan-shaped filter screen 203 is reset. At this time, due to the action of the spring 202, the fan-shaped filter screen 203 bounces up and down repeatedly to accelerate the filtering effect. When the fan-shaped filter screen 203 contacts the scraper 305, the scraper 305 scrapes impurities and a small amount of large materials from the fan-shaped filter screen 203. When the scraper 305 is worn out after being used too many times, the pull plate 302 can be pulled up to disengage the limit rod 303 from the inside of the limit hole, and then the scraper 305 is disengaged from the inside of the mounting frame 301, and then it can be replaced;

[0026] The fan-shaped filter screen 203 is elastically connected to the filter frame 2, and a plurality of annular holes 201 are arranged at equal intervals for easy filtering. The rotating motor 205 is fixedly connected to the cam 204, the motor 107 is key-connected to the driving gear 106, and the rotating rod 104 is fixedly connected to the driven gear 105 for driving the filter frame to rotate. The mounting frame 301 is U-shaped, and the top of the mounting frame 301 is symmetrically provided with an avoidance opening for avoiding the limit rod 303, and the cross-sectional area of ​​the pull plate 302 is larger than the avoidance opening. The transverse cross-sectional area of ​​the opening is large, which is convenient for installing the scraper 305. A fixing plate is provided on the outside of the limiting rod 303, and the fixing plate and one end of the compression spring 304 are fixedly connected. The scraper 305 is provided with a limiting hole for matching with the limiting rod 303, which is convenient for limiting the position of the scraper 305. The inner side walls of the mounting frame 301 are symmetrically provided with positioning protrusions, and both sides of the scraper 305 are provided with positioning grooves for matching with the positioning protrusions. The scraper 305 and the mounting frame 301 are slidably connected, which is convenient for installing the scraper 305.

[0027] The working process of the utility model is as follows: when using the impurity removal device for the circulating flash evaporator, the driving gear 106 is first driven to rotate by the motor 107, and the driving gear 106 drives the driven gear 105 to rotate. At this time, the upper filter frame 2 rotates, and the fan-shaped filter screen 203 is intermittently located in the impurity removal gap 101. When the fan-shaped filter screen 203 is not in the impurity removal gap 101, the material directly enters the lower tube 103 from the upper tube 102 through the annular hole 201. When the fan-shaped filter screen 203 is located in the impurity removal gap 101, the material passes through the fan-shaped filter screen 203, and larger impurities fall on the fan-shaped filter screen 203, and a small amount of large pieces of material also fall on the fan-shaped filter screen 203. Small particles of material pass through the fan-shaped filter screen 203 and enter the lower tube 103, wherein the rotating motor 205 drives the cam 204 to lift the fan-shaped filter screen 203. At this time, the spring 202 stretches and the fan-shaped filter screen 203 resets as the cam 204 rotates. At this time, due to the action of the spring 202, the fan-shaped filter screen 203 bounces up and down repeatedly to accelerate the filtering effect. At the same time, as the fan-shaped filter screen 203 rotates, impurities and a small amount of large materials are moved out of the impurity removal gap 101 with the fan-shaped filter screen 203. When the fan-shaped filter screen 203 contacts the scraper 305, the scraper 305 scrapes the impurities and a small amount of large materials from the fan-shaped filter screen 203. When the scraper 305 is worn out after being used too many times, the pull plate 302 can be pulled up to disengage the limit rod 303 from the inside of the limit hole, and then the scraper 305 can be disengaged from the inside of the mounting frame 301, and then it can be replaced.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A de-impurity device for a circulating flash evaporator, comprising a main body (1), characterized in that: The main body (1) is provided with a debris removal gap (101) inside, an upper tube (102) is provided at the top end of the debris removal gap (101), a lower tube (103) is provided at the bottom end of the debris removal gap (101), a filter frame (2) is provided in the debris removal gap (101), a plurality of annular holes (201) are provided on the filter frame (2), a plurality of springs (202) are provided on the top end of the springs (202), and a fan-shaped filter screen (203) is provided at the top end of the springs (202). ), a cam (204) is provided at the bottom end of the fan-shaped filter screen (203), the cam (204) is connected to a rotating motor (205), a rotating rod (104) is provided at the bottom end of the filter frame (2), a driven gear (105) is provided at one end of the rotating rod (104), the driven gear (105) is engaged with a driving gear (106), the driving gear (106) is connected to a motor (107), and a fixing rod (3) is provided on the inner side wall of the main body (1); The fixing rod (3) is connected to the mounting frame (301), a pull plate (302) is provided at the top end of the mounting frame (301), the pull plate (302) is connected to a limiting rod (303), a compression spring (304) is provided outside the limiting rod (303), and one end of the limiting rod (303) is connected to a scraper (305).

2. The impurity removal device for a circulating flash evaporator according to claim 1, characterized in that: The fan-shaped filter screen (203) is elastically connected to the filter frame (2), and a plurality of the annular holes (201) are arranged at equal intervals.

3. The impurity removal device for a circulating flash evaporator according to claim 1, characterized in that: The rotating motor (205) and the cam (204) are fixedly connected, the motor (107) and the driving gear (106) are key-connected, and the rotating rod (104) and the driven gear (105) are fixedly connected.

4. The impurity removal device for a circulating flash evaporator according to claim 1, characterized in that: The mounting frame (301) is U-shaped, and a clearance opening for avoiding the limit rod (303) is symmetrically provided at the top of the mounting frame (301), and the transverse section area of ​​the pull plate (302) is larger than the transverse section area of ​​the clearance opening.

5. The impurity removal device for a circulating flash evaporator according to claim 1, characterized in that: A fixing plate is provided outside the limiting rod (303), and the fixing plate is fixedly connected to one end of the compression spring (304). The scraper (305) is provided with a limiting hole for matching with the limiting rod (303).

6. The impurity removal device for a circulating flash evaporator according to claim 1, characterized in that: The inner side wall of the mounting frame (301) is symmetrically provided with positioning protrusions, and both sides of the scraper (305) are provided with positioning grooves adapted to match the positioning protrusions. The scraper (305) and the mounting frame (301) are slidably connected.

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